Carrie Underwood

It's a universal fact that Carrie Underwood is the most successful alumnae in American Idol history. If you do not believe that, here's a rundown of what she has achieved so far: six Grammys, ten Academy of Country Music Awards and seven Billboard Awards. The list does not stop there. How about being called the best-selling debut album for a country artist and selling 15 million albums worldwide. If you still are not convinced, how about the 30 million singles that she sold and around $100 in concert tour revenues.

All of these came from her honest and soothing blend of country and pop music that is told through her sweet voice. Tagged as the current queen of country music, there is no way that Carrie Underwood will go out in the near future. She will continue to amaze audiences with her charitable personality and unmatched intensity during performances. If in some ways, you still are not a believer, you better buy tickets to her future concerts and you will become a fan in an instant.